— 5 — 



41. PoLYGYRA HiRSUTA Say. Common ; rather variable 



in size; albin specimens were found. 



42. Strobilops labyrinthicus Say. Woods, not 



scarce. 



43. Strobilops virgo Pils. Rare; on a hill meadow 



near New Philadelphia. Doubtless a different 

 species, with a wide geographical distribucion. 



44. Pupa fallax Say. Scarce; found only at New 



Philapelphia. It is believed by some conchologists 

 that this species — and group — might better be 

 ranged under Buliminus. 



45. Pupa corticaria Say. Scarce. 



46. Pupa armifera Say. Rather common. 



47. Pupa contracta Say. Common. 



48. Pupa curvidens Gld. Common. 



a. var. gracilis Sterki. Scarce, New Philadelphia. 

 A peculiar form intermediate in shape between the 

 type and Pupa holzingeri Sterki. It has also been 

 seen from Rhode Island, Tennessee and Alabama. 



49. Pupa pentodon Say. Not common; with and with- 



out a denticle between the parietal fold and the 

 columella; examples from wet places are small and 

 short ovoid (f. curta.) 



50. Pupa edentula Drap. (Vertigo simplex Gould.) 



Not common. Specimens were found high, with 

 the last whorl wider (like var. gredleri Clessin, or 

 some alticola Ingers). 



51. Vertigo (Angustula) milium Gld. Rather com- 



mon. 



52. Vertigo gouldii Binn. Rare; Goshen. 



53. Vertigo tridentata Wolf. Rather scarce; Goshen, 



Stonecreek (bog, with Nos. 54 and 54 a) and other 

 places. 



54. Vertigo ventricosa Mse. Wet places, not com- 



mon; Blicktown, bog in Stonecreek Valley, 

 a. var. elatior, n. A form not described: larger and 

 more elevated than ventricosa, ovate to oblong- 

 ovate, with a rather pointed apex; a strong callus 

 in the i)cilata! wall, into which the plicae merge, a 

 strong, t(K)th-like lamella in the base. The two 



